Two forms on one page - THE ANSWER

Jim - Much thanks to you for solving a problem with which I have been struggling for the last two weeks. Here is the code: =========== <?php session_start(); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <?php switch ( @$_POST['next_step'] ) { case 'step1':

        echo 'Your kittens name is '.htmlspecialchars($_POST['cat']);

echo <<<FORM

        <form method="post" action="">
        <input type="hidden" name="next_step" value="step2" />
        <br />Enter your date of birth, in mm/dd/yyyy format: <br />
        <input type="text" name="dob" />
        <input type="submit" name="submit" value="Submit" />
        </form>

FORM; break; case 'step2':

        if ( empty($_POST['dob']) )
                die('DOB was not set in session...');
        if ( !preg_match('!^\d{2}/\d{2}/\d{4}$!', $_POST['dob'], $m) )
                die('DOB was not properly formated, please try again.');

// calculate timestamp corresponding to date value

        $dateTs = strtotime($_POST['dob']);

// calculate timestamp corresponding to 'today'

        $now = strtotime('today'); $dateArr = explode('/', @$_POST['dob']);

// check that the value entered is a valid date

        if ( !checkdate($dateArr[0], $dateArr[1], $dateArr[2]) )
                die('ERROR: Please enter a valid date of birth');

// check that the date entered is earlier than 'today'

        if ( $dateTs >= $now )
                die('ERROR: Please enter a date of birth earlier than today');

// calculate difference between date of birth and today in days // convert to years // convert remaining days to months // print output

        $ageDays = floor(($now - $dateTs) / 86400);
        $ageYears = floor($ageDays / 365);
        $ageMonths = floor(($ageDays - ($ageYears * 365)) / 30);
        echo "You are approximately $ageYears years and $ageMonths months old.";

break; case 'step1':

        default:

echo <<<FORM

        <form method="post" action="">
        <input type="hidden" name="next_step" value="step1" />
        Enter your kitten's name: <br />
        <input type="text" name="cat" />
        <input type="submit" name="submit" value="Submit Kitten" />
        </form>

FORM; } ?> ========= Ethan MySQL 5.1 PHP 5.3.3-6 Linux [Debian (sid)]